Portable hot-fluid heating apparatus.



H. T. OFF'TERDINGER. PORTABLE HOT FLUID HEATING APPARATUS. APPLIOATION'IILED SEPT. 18, 1906.

912,320. Patented Feb. 16, 1909.

2 SHEETS-SHEET 1.

H. T. OFFTERDINGER'.

- PORTABLE HOT FLUID HEATING APPARATUS.

APPLICATION FILED 8EPT.18, 1906. 91 2,320.

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2 SHEETS Patented Feb. 16, 1909.

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HENRY T. OFFTERDINGER, OF WASHINGTON, DISTRICT OF COLUMBIA.

PORTABLE HOT-FLUID HEATING APPARATUS.

2 Application filed September 18, 1906. Serial No. 335,059.

To all whom it may concern:

Be it known that I, HENRY T. OFFTERDIN- GER, a citizen of the United States, residing at Washington, in the District of Columbia, have invented new and useful Improvements in Portable Hot-Fluid Heating Apparatus, of which the following is a specification.

My invention relates to portable hot fluid heating apparatus of the radiator class, and more particularly to that type of apparatus described in my Patent Number 830,359,

' granted Sept. 4, 1906. In apparatus of this character, water or other suitable fluid is heated and thereby caused to circulate through a series of radiator sections, the combined sections making up the radiator being portable.

One object of the invention is to provide improved means for supplying heat to the circulating medium, to the end that a radiator equipped with my invention may have its body of circulating fluid quickly and intensely heated.

Other objects will appear from the following description.

Radiators of the type to which this invention is directed, are chiefly though not exclusively, useful to heat rooms or apartments not connected to a permanent heating system of a building. Such portable apparatus may be moved from place to place, and used wherever there maybe a suitable source of fuel supply, such as gas from an ordinary gas-fixture, or the like. My invention is not limited, however, to use with gaseous fuel, but, in certain of its features, is also applicable to apparatus employing liquid fuel, such as oil or alcohol.

WVith the above and other objects in view, the invention consists in a portable hot fluid heating apparatus or radiator, and associated burner, possessing the features hereinafter described, and illustrated in the accompanying drawings; and also in several novel sub-combinations.

I will first describe my invention in detail, and then point out what I regard as the novel features thereof in the appended claims.

In the accompanying drawings, forming part of this application, and illustrating what I regard as the best known embodiment of my invention; Figure 1 is a perspective view of the radiator complete. Fig. 2 is a partial end elevation of the same. F1g. 3, is a fragmentary section on line 22 of Flg.

Specification of Letters Patent.

Patented Feb. 16, 1909.

2, looking in the direction of the arrow. Fig. l is a section, on an enlarged scale, taken along line 33 of Fig. 2, looking in the direction of the arrow. Fig. 5 is a plan view of the burner. Fig. 6 is a similar view,

.but showing the end plate and cover removed. Fig. 7, is a central vertical section of the burner. Figs. 8, 9, and 10 are details of the upper end of the flue, Fig. 10 showing its connection with the radiator.

In the drawings, 1 represents the radiator, which may be of any well known or approved pattern, and may be provided with an expansion box or tank 2. Through this radiator, the water is caused to circulate, and the same constitutes the heat-radiating medium, by which the room or other place in which the same is located, is warmed. In order to quickly and efliciently heat the water the auxiliary device which forms the subject of this invention is provided. Said device consists of a supplementary tube or passage 4:, arranged at one end of the radiator, and substantially parallel to the radi-,

For brevity this device will be ator tubes. referred to as a heating-tube. In the preferred construction, the heating tube is disposed substantially vertically, and is in communication at its opposite ends with the fluid circulating system of the radiator by means of any suitable connections 3 and flanges 5, as clearly shown in the Figs. 3 and 10. In this way, when the liquid in the tube is heated, it is caused to circulate through the radiator, as is well known. In order to heat the tube and its contents, I provide a burner, designated in its entirety by the numeral 6. Said burner comprises a body portion 7 surmounted by a perforated top or cover 8. The burner carries a neck 8 and set screw 9 for connection with the pipe 11 leading from the mixing device 12. A pipe or conductor 13 supplies the fuel. In the body of the burner is formed the chamber'or cavity 10, extending into both legs 14, of the same, into which the fuel passes, before issuing from the orifices in the cover. The cover 8 is provided with a double row of perforations, as in my prior patent above referred to. As shown in said patent, however, these perforations are vertical, while in the present invention I make them inclined inwardly, as clearly shown in Fig. 3. The heating tube 4 passes down between the two legs of the burner, and is of.a relatively thin, fiat crosssection, as shown in Fig. 4:. By virtue of the inclined position of the perforations. or ports 15, the-flame therefrom is gle flected inwardly and played directly against the sides of the tube l, indicated by the; arrows in Fig. 3, thereby producing a very eflicient and intense heating thereoi- I re-- gard this as one important feature of my invention. Although the legs of the burner embrace the heating tube they are not in contact therewith. The topand body portions are provided with internally projecting lugs, 1 and 16 respectively, which bear against the tube 4, and preserve a space 18,, between the tube and the inside of said burner.- This permits a free supply of air to the inside of the flame", and thereby insures complete combustion. The legs of the burner are held together at the end by anotched plate 1 9', secured by screws 20. The object of this construction is to enable the removal ot the burner for inspection or re pairs, without disturbing the heating tube. The top of the burner is provided at its ends with vertical flanges or lugs 21, preferably integral therewith.-

Lhe combustion chamber; or firebox is formed of a hollow casing. 22, composed of a strong, refractory material, preferably, cast'-iron-.- This casing is provided with preferably integral, inwardly projecting flanges or lugs 23,- wliich hug the flanges 21,

and rest on top of the burner, thereby sup porting the casing. The bottom of the cas ing is-left open, to" permit the free access of air to theoutside of the flame. The-casingis' also provided with openings or peep holes 24 closed: by shutters'Q Pand with lighting orilices 25-, closed by shutters; 25 and is formed at. its upper end with an annular shoulder and upstanding flange 261- The casing22 is: surmounted by a flue or chimney 27, formedof sheet metal, suchas iron or copper, which surrounds the flange 26, and rests upon the annular'shoul'der, and is thus supported in position. This fiue is furnished. with a cover 28', formed with a peripheral flange 29, whereby it is secured,

' and with a depending bracket 30, which is adapted to embrace theupper end oftube 45,- and straddle the flange 5. This bracket con stitu'tes a means for holding the flue in: proper relation to the heating tube, The upper end ofthe flue, on the side next to the. radiator, is cut away, as at 31:,to ma-lre room. for the: coupling 3; and. also topermit the escape of'the products of combustion; I deem this feature an improvement over my prior patent, in: that, with the present con structi'on, the hot gases are discharged against the radiator, and thus aid inheating the circulating fluid.

The fuel enters-the pipe 13, passest'hrough the mixerlQ, where it is-mrxed with a suitiburner, and the mixture then passes into-the chamber. 10, and thence through the ports,

I or. jetprifices- 15;. By virtue the above described construction of the burner, the flaineen;issuingsiironr the orifices, recelves anadditional supply of air, and is directed againstthesides of the tube, thus producing:

- the flue, as above described.

the arrangementdescribedl 1". have provided avery simpl ii, complete, and eflicient heating apparatus, the utility and numerous advantages of which will be readily" appreciated Having thus described my" invention, 1'

I claim as new and desire to secure by Eett'crs 1) .L atent 1. In combination with a; portable liot fluid radiator, provided withan auxiliary fluid passage, ha-ving' communication at its opposite ends with the radiator sections, burner surrounding said auxiliary fluid pas} sage, and having inclined ports or jet-Lori? flees, directed toward said fluid and lugs carried by said burner and bearing a gainst' said auxiliary fluid passage; whereby' an air space is" preserved between said parts; s

2". In combination with a vertical fluid containing member of comparatively thin;

.flat, cross-section, a burner of substantial U-s'hape'havin'g' fiat, parallel legs cinbracing said member, the legs of said burnerbeingr held at their ends by removable plate haying a square shoulder projecting between the same, substantially and for'the pur pose. described.

3& The; combination with vertical; fluid containing chamber havinga comparatively thin, flat, cross-section, 2v horizontal,

U-sha'ped burnert he legs of' which. embrace said chamber,- said burner comprising a liol low body portion and a removable 11d or cover, such lid having a series of inwardly inclined jet orifices in1each leg 'ot the U and means for preserving an air' space between said burner and chamber:

l .-Tlie combinat ion= with a vertical fi uid containing chamber of thin, flat, cross scction, 01 a horizontally disposed l'l-shaped burner surrounding said chamber,- tlie legs of said burner being straight and: arallel and formed with internallyprojecting lugs} whereby an air space ispres'erved between such legs and the-flat" wallsof said: chamber: 51.1211: combination with a portable l ietifluid radiator, a heating tube connected; at its ends with sal'd radiator, burner em bracing said tube; an'd firebox-i suri'icnnrl ing said burner and provided with internally 6, In: a hot water heating apparatus, in

ing its ends connected therewith, a burner arranged to heat said tube, said burner comprising a body portion, and a top member or cover, containing the jet orifices, and provided at each end with upstanding lugs, and a firebox surrounding said burner and provided with internally projecting lugs adapted to hug the corresponding lugs on said top member.

7. The combination with a substantially vertical fluid containing member of a burner embracing said member, a fire-box of heat resisting material surrounding the burner and lower end of said member, and a detachable flue of light material supported by said firebox and surrounding the upper part of said member.

8. In combination with a hot-fluid radiator provided with a vertically disposed heating tube connected at its ends, by suitable couplings, with the radiator, a flue surrounding said tube, said flue being cut away to receive the upper coupling, and to permit of the discharge of the products of combustion around and below the coupling and against the radiator, whereby the heating efiect is increased.

9. In combination with a portable hotwater radiator, a vertically-disposed heating tube having communication with the fluid passages of the radiator and comprising walls which, as compared with the walls of the columns of the radiator proper, are closely associated to compel the fluid to pass therethrough in a thin film, a burner combined with and surrounding said heating-tube at the lower portion thereof, said burner being formed with inwardly directed jet orifices, and with internally projecting lugs bearing against the heating tube, whereby the flame is caused to impinge upon the walls of said heating tube, and a current of air supplied to the inside of said flame.

'10. The combination with a substantially vertical fluid containing chamber of elongated cross'section, of a horizontal, U-

shaped burner, the legs of which embrace said chamber, said burner comprising a hollow body portion, and a removable lid or cover, containing a row of jet orifices on both sides of said chamber, both said body portion and cover being provided with lugs abutting said chamber, whereby an air space is preserved between the legs of said burner and the walls of said chamber.

. In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRY T. OF FTERDINGER. Witnesses GEO. REA, GERTRUDE M. STUGKER. 

